21112120202099 has 2 divisors, whose sum is σ = 21112120202100. Its totient is φ = 21112120202098.

The previous prime is 21112120202053. The next prime is 21112120202113. The reversal of 21112120202099 is 99020202121112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21112120202099 - 2⁴⁴ = 3519934157683 is a prime.

It is not a weakly prime, because it can be changed into another prime (21112120202029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10556060101049 + 10556060101050.

It is an arithmetic number, because the mean of its divisors is an integer number (10556060101050).

Almost surely, 2^{21112120202099} is an apocalyptic number.

21112120202099 is a deficient number, since it is larger than the sum of its proper divisors (1).

21112120202099 is an equidigital number, since it uses as much as digits as its factorization.

21112120202099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 32.

The spelling of 21112120202099 in words is "twenty-one trillion, one hundred twelve billion, one hundred twenty million, two hundred two thousand, ninety-nine".